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path: root/drivers/i2c/muxes/pca954x.c
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2018-08-06i2c-mux: pca954x: support pca9646 i2c switchPeng Fan
Add the PCA9646 support, which is 2-wire bus switch and buffered 4-channel. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-11i2c: muxes: pca954x: look up width from chip_descChris Packham
Commit 8e6eda7cda6c ("drivers/i2c/muxes/pca954x: Add pca9547 I2C mux support") introduced a chip_desc for the pca954x devices but failed to update pca954x_ofdata_to_platdata() to be aware of it. Make pca954x_ofdata_to_platdata() lookup the chip_desc to validate the device width. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Marek Behun <marek.behun@nic.cz>
2017-09-13i2c: muxes: pca954x: Add support for GPIO reset lineMoritz Fischer
This commit adds support for GPIO reset lines matching the common linux "reset-gpios" devicetree binding. Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12drivers/i2c/muxes/pca954x: Add pca9547 I2C mux supportMarek BehĂșn
This I2C mux is found, for example, on the Turris Omnia board. Signed-off-by: Marek Behun <marek.behun@nic.cz> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-17i2c: muxes: Add support for TI PCA954X muxMichal Simek
Add support for common TI i2c mux which is available on ZynqMP zcu102 board. DM i2c mux core code is selecting/deselecting bus before/after every command is performed that's why only one channel is active at a time. That's also the reason why deselect is just disable all available channels. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>